New Features

New administrative and introspection commands and command arguments

• CLUSTER SHARDS command deprecates CLUSTER SLOTS (#10293)

Potentially Breaking Changes

• CONFIG GET response returned in a non-deterministic order. It's possible that a client was relying on configs order (#10323)
• SORT / SORT_RO commands reject keys access patterns in GET and BY if ACL doesn't grant the command full keyspace access (#10340)
• FUNCTION LOAD command introduced in 7.0-RC1 was stripped of the ENGINE, and NAME arguments which are now part of the script itself. The DESCRIPTION argument was completely removed (#10500)
• Set disable-thp config to be immutable (#10409)

Performance and resource utilization improvements

• Optimize performance and memory usage on replicas (#10413)
• A faster and more robust code of zslRandomLevel using RAND_MAX (#5539)

Changes in CLI tools

• redis-cli: Use exit code 1 on error (#10468)
• redis-cli: Do DNS lookup before sending CLUSTER MEET (#10436)
• redis-benchmark: Fix --cluster with IPv6. (#10393)
• redis-cli: Better --json Unicode support and --quoted-json (#10286)

INFO fields and introspection changes

• MEMORY STATS: Show cluster.links memory usage (#10302)

Module API changes

• APIs for exposing module configs to config file and CONFIG command (#10285)
• Add an event notifying about configuration changes (#10311)
• Add API for redacting command arguments from SLOWLOG and MONITOR (#10425)
• RM_Call: new flags for script mode compatibility, no writes, and error replies (#10372)

Bug Fixes

• Sentinel: Fix no reconnect after auth-pass is changed (#10400)
• Cluster: Fix race condition: Turn into replica on SETSLOT (#10489, #10381)
• XREADGROUP: Unblock client when the stream key is deleted (#10306)

Fixes for issue in previous release candidates of Redis 7.0

• ACL DRYRUN does not validate the verified command args. (#10405)
• ACL DRYRUN returns the tested common permission error (#10359)
• Incorrect parsing of hostname information from nodes.conf (#10435)
• BITSET and BITFIELD SET should propagate even if just length changed (#10459)
• SHUTDOWN, Fix a possible crash when the shutdown was aborted (#10440)
• Script should not allow may-replicate commands when client pause write (#10364)
• Optimization tracking memory usage from i/o threads. (#10401)
• Initialize help when using redis-cli help or redis-cli ? (#10382)
• Dismiss COW of client output buffer now that it's dynamic (#10371)
• Fix memory corruption when EVAL fails before being processed (#10519)